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Sipahi received his BS from Technical University of Istanbul in 2000, and MS and PhD degrees respectively in 2002 and 2005 from University of Connecticut, all in mechanical engineering. Awarded with a Chateuabriand scholarship by the French government, he has been a postdoctoral fellow at Universite de Technologie de Compiegne, HeuDiaSyC Labs (CNRS) in France. He joined the Department of Mechanical and Industrial Engineering at Northeastern University in August 2006.

Sipahi is the recipient of the 2015 ASME Dynamic Systems and Control Division Outstanding Young Investigator Award, a 2011 DARPA Young Faculty Award, 2011 College of Engineering Martin W. Essigmann Outstanding Teaching Award, and 2014 College of Engineering Faculty Fellow Award. He has also been actively involved in ASME Dynamic Systems and Control (DSC) Division, taking editorial duties in division newsletter and recently in division-led ASME DSC Magazine. His scholarly activities include publication of 58 journal articles and 89 peer-reviewed conference papers, as well as 10 book chapters and additional 30 conference presentations including invited session talks. His research has been funded primarily by US National Science Foundation and DARPA. He (co-)edited four book volumes with Springer each with a collection of invited chapters totalling around 400 pages (2009, 2012, 2013, 2017), total of which received over 100,000 chapter downloads to date. His Google Scholar h index is 29.

Sipahi has been actively involved as associate editor, associate editor at large, publicity chair, finance chair, outreach chair, program committee member, session chair/co-chair in many conferences organized by ASME, IEEE, and IFAC, including the 2012 IFAC Workshop on Time Delay Systems, which he co-organized at Northeastern University, and of which he was the Program Editor. He is also the co-creator of e-delay newsletter together with Prof. Niculescu. He was the lead organizer of three one-full-day educational workshops with Professors Hitay Ozbay, Silviu-Iulian Niculescu, Wim Michiels, Dimitri Breda, and Fatihcan M. Atay in the field of Time Delay Systems at three major control systems conferences (2013, 2014 European Control Conference, and 2013 IEEE Conference on Decision and Control) as well as the sole organizer of a similar workshop held preceding the ASME Dynamic Systems and Control Conference in 2015. He is the lead author of the article entitled Stability and Stabilization of Systems with Time Delay, Limitations and Opportunities that was published in 2011 in IEEE Control Systems Magazine, with S.-I. Niculescu, C.T. Abdallah, W. Michiels and K. Gu as co-authors; and the author of the book entitled Mastering Frequency Domain Techniques for the Stability Analysis of LTI Time Delay Systemswhich recently published with the Society of Industrial and Applied Mathematics.

Sipahi is a Fellow of ASME since 2014 and was elevated to IEEE Senior member grade in 2016.  He currently serves as Associate Editor for Automatica and Editor of the Conference Editorial Board of the ASME Dynamic Systems and Control Conference.


  • PhD (2005), Mechanical Engineering, 
    University of Connecticut
  • MSc (2002), Mechanical Engineering,
    University of Connecticut
  • BSc (2000), Mechanical Engineering,
    Istanbul Technical University

Research & Scholarship Interests

Control systems and mechatronics; stability analysis and control synthesis of dynamical systems with delays; interplay between stability, delays, and graphs; control-systems-aided human-machine systems; engineering education research; disability research; systems biology
Affiliated With

Department Research Areas

Honors & Awards

  • 2017 Associate Editor, Automatica
  • 2016 IEEE Senior Member
  • 2015 ASME Dynamic Systems and Control Division Young Investigator Award
  • 2014 COE Faculty Fellow
  • 2014 ASME Fellow
  • 2011 DARPA Young Faculty Award.
  • 2011 Martin W. Essigmann Outstanding Teaching Award of the College of Engineering, Northeastern University.
  • 2011 Nominated for the Excellence for Teaching Award of Northeastern University.
  • Lead author of the review article published and featured as cover in IEEE Control Systems Magazine February 2011 issue.
  • 2005 Chateaubriand Scholarship to conduct post-doctoral research in France, awarded by the French Government.
  • 2003 Best Master’s Thesis Award of School of Engineering, University of Connecticut.
  • 2002 Best Student Paper Award from Dynamic Systems and Control Division at ASME-IMECE Conference, New Orleans, LA.

Teaching Interests

  • Mechanical Engineering Design (undregraduate)
  • System Analysis and Control (graduate and undergraduate)
  • Time Delay Systems, Stability and Control (graduate level)
  • Introduction to System Dynamics (Honors Program, undergraduate level)
  • ME Capstone (senior design)

Professional Affiliations

  • American Society of Mechanical Engineers International
  • Institute of Electrical and Electronics Engineers

Selected Publications

Fast Consensus in a Large-Scale Multi-Agent System with Directed Graphs Using Time-Delayed Measurements,
Ramirez, A., Sipahi, R., Mondie, S., Garrido, R.
Philosophical Transactions A. DOI 10.1098/rsta.2018.0130 (in print)

Stochastic Cellular Automata Model of Tumorous Neurosphere Growth: Roles of Developmental Maturity and Cell Death
Zupanc, G.K.H., Zupanc, F.B., Sipahi, R.
Journal of Theoretical Biology, 467, 100-110, 2019

An approach to compute and design the delay margin of a large-scale matrix delay equation
Ramirez, A., Koh, M., Sipahi, R.
International Journal of Robust and Nonlinear Control, 29(4), 1101-1121, 2019

Single-Delay and Multiple-Delay Proportional-Retarded Protocols for Fast Consensus in a Large-Scale Network
Ramirez, A., Sipahi, R.
IEEE Transactions on Automatic Control (online)

Multiple Intentional Delays can Facilitate Fast Consensus and Noise Reduction in a Multi-Agent System
Ramirez, A., Sipahi, R.
IEEE Transactions on Cybernetics, 49(4), 1224-1235, 2019

Effect of Edge Elimination on the Delay Margin of a Class of LTI Consensus Systems
Koh, M., Sipahi, R.
IEEE Transactions on Automatic Control, 63(12), 4397-4404, 2018

Input/Output Stability of a Damped String Equation Coupled with Ordinary Differential System
Barreau, M., Gouaisbaut, F., Seuret, A., Sipahi, R.
International Journal of Robust and Nonlinear Control, 28(18), 6053-6069, 2018

Development of a combined time-frequency technique for accurate extraction of pNN50 metric from noisy heart rate measurements
YR Vaqueiro, P Parsinejad, R Sipahi, JAM Lorenzo
International Journal of Intelligent Robotics and Applications 2(2), 193-208, 2018

Stochastic cellular automata model of neurosphere growth: Roles of proliferative potential, contact inhibition, cell death, and phagocytosis
R Sipahi, GKH Zupanc
Journal of theoretical biology 445, 151-165, 2018

Growth of adult spinal cord in knifefish: Development and parametrization of a distributed model
I Ilieş, R Sipahi, GKH Zupanc
Journal of theoretical biology 437, 101-114, 2018

See Google Scholar Profile for all publications »

Related News

June 24, 2019

MIE Professor Rifat Sipahi and co-authors from NYU and UCLA published the article "Media coverage and firearm acquisition in the aftermath of a mass shooting" in Nature Human Behaviour, which was also featured in the NYU article "Mathematics Ties Media Coverage of Gun Control to Upticks in Gun Purchases".

May 23, 2019

MIE Professor Rifat Sipahi published "Mastering Frequency Domain Techniques for the Stability Analysis of LTI Time Delay Systems" with the Society of Industrial and Applied Mathematics (SIAM).

February 26, 2019

MIE Professor Rifat Sipahi is working with biology professor Gunther Zupanc to determine why certain cancer tumors grow back. Source: News @ Northeastern This might be why some tumors grow back...

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